John clifford



(No Model.)

6. CLIFFORD. W STRALIIUEHR.OR GRATE FOR BASIN OUTLETS, 6:6. No. 506,668.

Patented Oct. 17-, 1893.

UNITED STATES PATENT. OFFICE.

JOHN CLIFFORD, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE L. WOLFEMANUFACTURING COMPANY, OF SAME PLACE.

STRAINER OR GRATE FOR BASIN-OUTLETS, 8w.

SPECIFICATION forming part of Letters Patent No. 506,668, dated October17, 1893. Application filed May 22, 1893. Serial No- 476,070- (Nomodel.)

To all whom-it may concern:

Be it known that 1, JOHN OLIFFORD,a citizen of the United States,residing in Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Strainers or Grates for Basin,Sink, Bath- Tub, or other Outlets, of which the following is aspecification.

My invention relates to improvements in the construction of strainers orgrates for the outlets of basins, sinks or bath tubs. Heretofore thesestrainers or grates have usually been constructed of four or more radialarms united together or crossing each other at the center of the outletor opening. In this old construction of strainer or guard, considerabledifficulty is experienced from the-outlet becoming clogged up withmaterial that should pass through the strainer or guard; and it is amatter of diificulty and inconvenience also to clean or free thestrainer from such lodged material as the strainers or guards to whichmy invention relates are customarily depressed somewhat in the outletopening below the general surface or contour of the bottom of the basinor sink.

The object of my invention is to provide a construction of strainer orguard for the outlets of sinks, basins or bath tubs which will beeflicient to arrest all particles or substances that should not passinto the outlet pipe, and which will at the same time obviate thedifficulty of clogging, and from which adhering substances may bereadily freed.

To this end my invention consists in connection with the outlet ordischarge opening of a basin, sink or other vessel of a strainer orguard therefor comprising a number of projecting pins each made shorterthan the diameter of the out-let or opening, so that they do notmeet orcross each other at the center, but on the contrary leave a free spaceat their ends. These inwardly projecting pins or guards are alsopreferably made slightly conical or tapering or inclined downward as totheir upper surface, so that lodged material may be more readily freedtherefrom.

lar letters of reference indicate like parts,

Figure 1 is a central vertical section of abasin, sink, bath tub orother outlet provided with a strainer or guard embodying my invention,and Fig. 2 is a top or plan view.

In the drawings A represents the basin or U vessel, or a portionthereof,B the outlet bush-- ing secured thereto; and D is the straineror guard consisting of a series of, preferably four, inwardly orradially projecting pins or projections d, the points or ends of whichextend near to, but npt quite to, the center of the outlet opening sothat a free space d is left at this oint. These pins may of course becast integral with the outlet bushing B, but they are preferably formedof separate pins secured in suitableopenings formed in the bushing B.The pins d are each preferably made slightly tapering and with roundedends d as is clearly indicated in the drawings.

I claim l. The strainer or guard for outlets of basins, sinks, bath tubsor other vessels consisting of a series of separate unconnected inwardlyprojecting pins or projections shorter than the diameter of the outletand having a free space at the ends thereof, substantially as specified.

2. The outlet B furnished with a strainer or grate consisting of aseriesof separate unconnected inwardly projecting tapering pins (1 extendingnear but not quite to the center of the outlet so as to leave a freespace at the center, substantially as specified.

3. The outlet B furnished with a strainer or grate consisting of aseries of separate unconnected inwardly projecting tapering pins 01extending near but not quite to the center of the outlet so as to leavea free space at the center, said pins d having rounded ends 01substantially as specified.

' JOHN CLIFFORD.

Witnesses:

H. M. MUNDAY, EMMA HACK.

